Jan-Nicklas Beeck is a German voice actor who also performs under the alias Jannick Beeck. He is the son of voice actress Heike Beeck. Beeck has voiced characters in numerous films and television series, with his work spanning both live-action dubbing and anime synchronization.

One of his notable voice roles in anime is Ryohei Uesaki in the series Aesthetica of a Rogue Hero, where he provided the German voice for the character across all twelve episodes. The original Japanese voice actor for this role is Satoshi Hino. Beeck's other anime voice credits include Hideki Tama in Evangelion: 3.33 - You can (not) redo., Chuuei Toutaku in Ikki Tousen: Xtreme Xecutor, Houkou Kakuka in the same series, a young boy identified as Junge B in Kämpfer, and Spencer in Yu-Gi-Oh! Zexal.

Beyond anime, his dubbing career includes a wide range of roles in international live-action productions. He has voiced characters in series such as Heroes, Grey's Anatomy, Bones, Smallville, and Scrubs - Die Anfänger, as well as in films like No Country for Old Men and Stiefbrüder. His credited voice work dates back to the mid-2000s.